A new purine 3,7-dimethylguanine (1) has been isolated from the marine sponge Zyzzya fuliginosa, along with the known metabolites. makaluvamines A, C, K (2-4), 4-hydroxyphenylacetic acid (5), methyl ester of 4-hydroxyphenylacetic ...

Some novel benzimidazole derivatives carrying thiosemicarbazide and triazole moieties at the N1 position were synthesized and their in vitro effects on rat liver microsomal NADPH-dependent lipid peroxidation (LP) levels ...

Propolis means a gum that is gathered by bees from various plants. It is known for its biological properties, having antibacterial, antifungal and heating properties. The aims of this study were to evaluate the antimicrobial ...

The present study was undertaken to investigate binding activity of synthesized 1,4-dihydropyridine (1,4-DHP) derivatives (Compounds 1-124) to 1,4-DHP calcium channel antagonist receptors in rat brain. Sixteen 1,4-DHP ...

Three new cycloartane-type triterpene glycosides have been isolated from the aerial parts of Astragalus trojanus. The structures were established mainly by a combination of one- and two-dimensional NMR techniques ...

Two new triterpene saponins, 3-O-beta-D-glucopyranosyl-(1 -> 2)-[alpha-L-rhamnopyranosyl-(1 -> 4)]-beta-D-glucuronopyranosyl-22-O-angeloyl-R1-barrigenol (1) and 3-O-beta-D-glucopyranosyl-(1 -> 2)-[alpha-L-rhamnopyranosyl(1 ...

From the aerial parts of the plant Verbascum salviifolium, two new iridoid glucosides, 6-O-beta-D-glucopyranosylcatalpol (1) and 6-O-(6"-O-trans-p-hydroxycinnamoyl)-beta-D-glucopyranosylaucubin (2) along with five known ...